Driver V4.0 - My Findings

[sbertin@mindspring.com]

On 17 Nov, Nick Holloway wrote:
> chris@tennille.com (Chris Whiteford) writes:
>> [How cpia-0.4.0 doesn't work for him]
>> Nov 17 00:25:38 tennille kernel:   CPIA Version: 1.2 (1.0) 
>> Nov 17 00:25:38 tennille kernel:   CPIA PnP-ID: 0553:0001:0100 
>> Nov 17 00:25:38 tennille kernel:   VP-Version: 1.0 0100 
> 
> I wonder if the problems are due to different versions of the camera.
> I have it working fine on UP Pentium 133.  However, I notice that the
> camera version is later.
> 
> Nov 17 07:44:56 alfie kernel:   CPIA Version: 1.20 (2.0) 
> Nov 17 07:44:56 alfie kernel:   CPIA PnP-ID: 0553:0002:0100 
> Nov 17 07:44:56 alfie kernel:   VP-Version: 1.0 0100 
> 
> I've also tried vidcat from w3cam-0.6.2, and that has also managed to
> grab an image.
> 

It's good to see this.  There are some known problems with the 1.2
version that aren't in the 1.20 version.  I thought I was handling this
properly, but maybe I missed something.  I'll look at it again this
weekend.

chris@tennille.com (Chris Whiteford) writes:
> and then boom...  see the kernel syslog output above
> 
> Also now any further tries to work with the video device result in a 
> /dev/video0: Device or resource busy
> 
> Also any try to remove the module cpia_pp results in a 
> rmmod: cpia_pp: Device or resource busy

Unfortunately, any crash in the kernel will leave the module in use
until a reboot.  This is probably related to the vfree problem.  The
vfree problem is fixed in the 0.4.1 driver (Yes, it's hiding.  Look in
the software archive for the patch.)

Scott J. Bertin
sbertin@mindspring.com



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